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The following is a list of fixes and enhancements for Omnidex organized by the release.
Support for nested queries in the FROM clauses within the WHERE clause Optimization of nested queries against partition qualifiers within Union Views Optimization using rollup tables within Union Views Improved optimization in Union Views within columns using the DISTINCT_IN_PARTITION option Improve memory mapping and exclusive access for files Fix to avoid processing grouped COUNT(DISTINCT …) using rollup tables unless all group by columns match the rollup table Fix display of counts for OmniSearch ActiveCounts template
Changes to compilation of JDBC driver to use new build_jdbc.ksh script Changes to profile to set JAVA_HOME, JAXB_HOME, DBCP_HOME, POOL_HOME and JTDS_HOME
Optimization of nested queries against partition qualifiers in Union Views. Optimization using rollup tables in Union Views.
Fix problems with oastatementinfo in queries against grids (DBUNION rule)
Support for the DataAccess ODBC driver on Linux, with testing against FreeTDS
Fix DSEdit and OdxQuery to allow them to work with 4.4.n releases. Fix Omnidex Addin problem with DBUNION (Grid) statements.
Optimization of TOP, SKIP, EVERY and RANDOM clause of SELECT statements to take advantage of skips within indexing. Improve handling of TOP and SKIP operations in the grid processing with the Addin (DBUNION rule). Change version checking between client and server so that a) ODBC and JDBC are based on an earliest compatible version, and b) CLOA is based on the Omnidex version, taking into consider whether info calls are to be used. For CLOA, the new property NoInfoCalls=Yes is supported, and if set, allows versions to sync on just x.xx, rather than x.xx.xx. – oaversion now supports showing the earliest Alpha internal release of OmniSearch
Improve debug messages to show better operating system information in banners and trace files Fix abort that occurs when column alias is a literal, but order by is a column. Fix to oainfo to resolve problems with info calls in the ODBC driver Improve performance of Hashed Data Cache on large result sets.
Windows: add OmniSearch: 1. Omnidex.Web.OmniSearch.dll 2. Omnidex.OmniAccess.EA.dll 3. OmniSearchWizard.exe 4. config\english\omnisearch\*.xml - Move Xerces libraries to OMNIDEX_LIBS directory - Add version.lib reference for odxdl library
Internal: Changes for explain plans and introduction of config\english\omnisearch\*.xml
Port to 64-bit Linux
Change oahelper’s generation of Omnidex installation scripts from a Unix shell script to a two input files, one for installing indexes and one for building indexes Change oahelper’s environment source generation to declare the database type as SQL Server rather than ODBC on SQL Server databases Support for SET CONTINUATION ON | OFF in ODXSQL to support Oracle or SQL Server style of entering multi-line statements. Fix OMNIDEX_DEBUG=ALL to display DataAccess driver messages as well Change licensing checks in Omnidex so that more utility operations are allowed when unlicensed, while still prohibiting database and index access. Fix problem where the OFX index files were not being deleted along with their TDF data files Fix problem in the Omnidex kernel where the pre-intersect counts were inaccurate on bitmap-indexed columns. Internal only: change odxget’s count parameter to a 32-bit integer to allow larger skip forward or skip backward operations.
Changes for port to 64-bit Linux Change location of Xerces libraries to DBS2_HOME Change to XSD version 2.3.1
Support for optimized radius searches, including Support for $distance function Support for USAGE LATITUDE, USAGE LONGITUDE in the environment file Optimization of $distance functions against Omnidex composite keys containing longitude and then latitude Support for Rollup Tables, including Support for declaration of Rollup Tables in the environment files Support for automatically optimizing queries using rollup tables Support for UPDATE ROLLUPS command in ODXSQL Support for metadata about Rollup Tables in oatableinfo Support for PARTITION BY clauses containing more than one predicate, such as STATE in (‘CO’) and ZIP between (‘80000’ and ‘80999’)
Support for Oracle 8 on Windows platforms Support for Oracle 10g on Linux platforms Fix error in Omnidex kernel in large wildcard qualifications, such as 1995@ (Axciom) Fix error in Omnidex kernel dealing with intersecting large bitmap ID lists Allow partitioning of all tables for grid environments, rather than restricting to child tables Improve table join support for grid environments Improve temporary file naming routines to make more unique for high-speed, multithreaded operations Disallow the LOAD OFX FOR TDF … command since it is replaced by LOAD OFX FOR TABLE … command
This option indicates that count distinct operations on this column are better optimized because the administrator guarantees that values are distinct within each partition.
This option indicates that the grid processing should cache connections to the node so that repeated calls to CLoaconnect, CLoaopencursor, CLoaclosecursor and CLoadisconnect are not needed for each node within each query.
(c)Copyright Dynamic Information Systems - This document was last updated November 11, 2009.